I think this software will be helpful. It's called Brain Power Math and allows
teachers to easily create e-learning assignments in algebra and other areas of
math. It has proper math symbols and the interface is easy to use. It's also
free to use in schools.

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
Any opinions, findings, and conclusions or recommendations
expressed in this material are those of the author(s)
and do not necessarily reflect the views of the
National Science Foundation.